Journal article

Measurement of elastic Υ photoproduction at HERA

Abstract:: The photoproduction reaction γp → μ+ μ-p has been studied in ep interactions using the ZEUS detector at HERA. The data sample corresponds to an integrated luminosity of 43.2pb-1. The Υ meson has been observed in photoproduction for the first time. The sum of the products of the elastic Υ(1S), Υ(2S),Υ(3S) photoproduction cross sections with their respective branching ratios is determined to be 13.3 ± 6.0(stat.)-2.3+2.7(syst.) pb at a mean photon-proton centre of mass energy of 120 GeV. The cross section is above the prediction of a perturbative QCD model. © 1998 Elsevier Science B.V. All rights reserved.

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APA Style

Breitweg, J., Derrick, M., Krakauer, D., Magill, S., Mikunas, D., Musgrave, B., Repond, J., Stanek, R., Talaga, R., Yoshida, R., Zhang, H., Mattingly, M., Anselmo, F., Antonioli, P., Bari, G., Basile, M., Bellagamba, L., Boscherini, D., Bruni, A., … Contin, A. (1998). Measurement of elastic Υ photoproduction at HERA. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 437(3-4), 432–444.

MLA Style

Breitweg, J., et al. “Measurement of Elastic Υ Photoproduction at HERA.” Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 437, no. 3-4, 1998, pp. 432–44.

Chicago Style

Breitweg, J, M Derrick, D Krakauer, S Magill, D Mikunas, B Musgrave, J Repond, et al. 1998. “Measurement of Elastic Υ Photoproduction at HERA.” Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics 437 (3-4): 432–44.
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+ Breitweg, J More by this author

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+ Derrick, M More by this author

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+ Krakauer, D More by this author

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+ Magill, S More by this author

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+ Mikunas, D More by this author

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Journal:: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics More from this journal
Volume:: 437
Issue:: 3-4
Pages:: 432-444
Publication date:: 1998-10-08
ISSN:: 0370-2693

Language:: English
Pubs id:: pubs:160776
UUID:: uuid:f63fe684-3824-4f32-bc74-9be09f42d087
Local pid:: pubs:160776
Source identifiers:: 160776
Deposit date:: 2012-12-19

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Copyright date:: 1998

Licence:: Terms and Conditions of Use for Oxford University Research Archive

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